8.4D: Square Roots

Front

What is a perfect square?

Back

A perfect square is a number that can be expressed as the product of an integer with itself. For example, 1, 4, 9, 16, and 25 are perfect squares.

Front

Which of the following is a perfect square: 49, 81, 111, 144?

Back

49, 81, and 144 are perfect squares. 111 is not.

Front

What is the square root of 81?

Back

The square root of 81 is 9.

Front

Evaluate √72 and round to the nearest whole number.

Back

√72 is approximately 8.49, rounded to the nearest whole number is 8.

Front

What is the square root of 16?

Back

The square root of 16 is 4.

Front

How do you determine if a number is a perfect square?

Back

To determine if a number is a perfect square, find its square root and check if the result is an integer.

Front

What is the square root of 25?

Back

The square root of 25 is 5.

Front

Is 50 a perfect square?

Back

No, 50 is not a perfect square.

Front

What is √.81?

Back

√.81 is .9.

Front

What is the square root of 144?

Back

The square root of 144 is 12.